Test Preparation on Math Test Preparation Problems on Ages Part 2

The ratio of the father's age to his son's age is 7 : 3. The product of their ages is 756. The ratio of their ages after 6 years will be :

The total ages of Jayant, Prem, and Saransh is 93 years. Ten years ago, the ratio of their ages was 2:3:4. What is the present age of Saransh?

Six years ago, the ratio of the ages of Kunal and Sagar was 6: 5. Four years hence, the ratio of their ages will be 11: 10. What is Sagar's age at present?

Present ages of Sameer and Anand are in the ratio of 5: 4 respectively. Three years hence, the ratio of their ages will become 11: 9 respectively. What is Anand's present age in years?